Sash-fastener



(No Model.)

B. L. REX.

SASH PASTENER. No. 311,366. Patented-Jan.Z7,1885.

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BENJAMIN LEHMAN REX, OF LOVETTSVILLE, VIRGINIA.

SASH-FASTENER.

SPECIFICATION forming part of Letters Patent No. 311,366, dated January 27, 1885. Application filed August 11, 1884. (No model.)

To all whom it may concern.-

Be it known that I, BENJAMIN L. REX, a citizen of the United States, residing at Lovettsville, in the county of Loudoun and State of Virginia, have invented certain new and useful Improvements in Sash Holders and Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to sash holders and locks, and has for its object the provision of a simple and efficient device capable of looking a sash when closed, holding it in an elevated position when raised, and for impinging upon and holding it at any desired height.

It consists in a combined right-angle drop and serrated cam pivoted to the side of the window-frame in such position as to thrust a right-angle arm into a hole in the moving sash, or under it when raised, by gravity, and to present a cam-surface t0 the face of the window-sash, to hold it at any height when arbitrarily manipulated for that purpose.

The particular construction, manner of using, functions, and advantages of my device will be hereinafter given by detailed description.

The accompanying drawings illustrate what I consider the best means for carrying my invention into practice.

Figure 1 is a perspective view of a window with my device applied, showing by full lines the window raised, and lowered in dotted. Fig. 2 is a detail side elevation of the device. Fig. 3 is a view of a portion of the window, showing my device as entering the hole in the upper part of the sash.

Similar letters of reference indicate corresponding parts in all the figures where they occur.

Ais the window-frame. B is the upper sash, immovable vertically in many windows; and O is the movable lower sash.

D refers generally to my combined drop and cam, the various parts of which will be surface, and to the lower end of the upright arm or rod 61 is attached the rightangle arm or extension f, projecting inward toward the sash. These parts constitute the essential operative features of my sash-holder. It is pivoted near the top, as shown, so that the preponderance of weight is below, and the pivot is in a perpendicular line with the lower end of the upright arm, so that the right-angle or horizontal arm f shall be thrown inward toward the sash, and tend to pass under it or into openings in it as opportunity offers. \Vhen the sash O is raised until the lower edge lies above the plane of motion of the horizontal arm said arm will automaticcally swing under and hold it in this elevated position, and when the sash is lowered the same arm, f, swings into the opening 0 in the sash and locks the sash down. When it is desired to hold the sash at any intermediate height, the cam end 6 is brought into action 'by turning the arm end f outward, and thus causing the face of the cam to impinge upon the sides of the sash. The holder is not in the way in manipulating the window, as the arm f will ride along the face of the sash without impeding its movement until the bottom is reached in elevating the sash, or until the locking-aperture c is reached in lowering said sash, when it will automatically swing under said sash or into said aperture and securely retain the window in an open or closed position.

To render the drop proof against accident or removal by children the arm f is provided on its outer end with a lug or upwardly-turned portion, f, and the space between it and the lower end of the upright arm at is just sufficient to receive the thickness of the sash, which will rest therein and prevent the withdrawal of the arm when the sash is elevated, without just raising the sash a little more to allow the withdrawal of the drop preparatory to lowering the sash.

To provide for the ready operation of the drop by hand, I provide a curve or bent portion, 9, in the upright arm d, bent outward from the sash, which permits of a ready manipulation; and for the same purpose, as well as strengthening the juncture of the upright and horizontal arms, the point where they meet may be enlarged and extended outward and downward to form a thumb piece, as shown atf The curve 9 also gives proper weight to the drop or holder to cause it to fall into the hole or under the sash.

The opening 0 will have a metal ring set into it, as shown, to protect the edges against wear and to give a finish.

Having thus described my invention, what I desire to claim and secure by Letters Patent 1s 1. A sash-holder adapted for use alongside of a movable sash, consisting of the upright arm (1 and horizontal arm f on the lower end of the upright arm. projecting toward the sash, and the cam e on the upper end of the upright arm having its impinging face turned normally away from the sash, substantially as and for the purpose set forth.

2; A sash-holder consisting of the upright portion d, having the curved thumb-piece 9 formed therein, the right-angle arm f, with the upward projection f on its end, and the cam e on the upper end of the arm d, having its face turned away from the sash normally, as set forth.

In testimony whereof I affiX my signature in presence of two witnesses.

BENJAMIN LEHMAN" REX.

Witnesses:

THOMAS J. Cosr, '0. T. WILLIAMS. 

